* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  background-color: #f7f7f7;
  opacity: 0;
  transition: opacity 0.2s;
}
body.active {
  opacity: 1;
}
p {
  margin: 0;
  word-wrap: break-word;
}
a {
  text-decoration: none;
  color: black;
}
.iot_logon {
  width: 10rem;
  height: 9.8077rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.iot_logon div:nth-child(1) {
  font-size: 0.3846rem;
  text-align: center;
}
.iot_logon div:nth-child(2) {
  font-size: 0.3846rem;
  color: white;
  width: 3.1731rem;
  height: 0.8077rem;
  background-color: #27ba9b;
  line-height: 0.8077rem;
  text-align: center;
  margin: 0.5769rem auto 0;
  border-radius: 0.4038rem;
}
